Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking changes from David S Miller:

 1) Remove the ipv4 routing cache.  Now lookups go directly into the FIB
    trie and use prebuilt routes cached there.

    No more garbage collection, no more rDOS attacks on the routing
    cache.  Instead we now get predictable and consistent performance,
    no matter what the pattern of traffic we service.

    This has been almost 2 years in the making.  Special thanks to
    Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who
    have helped along the way.

    I'm sure that with a change of this magnitude there will be some
    kind of fallout, but such things ought the be simple to fix at this
    point.  Luckily I'm not European so I'll be around all of August to
    fix things :-)

    The major stages of this work here are each fronted by a forced
    merge commit whose commit message contains a top-level description
    of the motivations and implementation issues.

 2) Pre-demux of established ipv4 TCP sockets, saves a route demux on
    input.

 3) TCP SYN/ACK performance tweaks from Eric Dumazet.

 4) Add namespace support for netfilter L4 conntrack helpers, from Gao
    Feng.

 5) Add config mechanism for Energy Efficient Ethernet to ethtool, from
    Yuval Mintz.

 6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet.

 7) Support for connection tracker helpers in userspace, from Pablo
    Neira Ayuso.

 8) Allow userspace driven TX load balancing functions in TEAM driver,
    from Jiri Pirko.

 9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with
    embedded gotos.

10) TCP Small Queues, essentially minimize the amount of TCP data queued
    up in the packet scheduler layer.  Whereas the existing BQL (Byte
    Queue Limits) limits the pkt_sched --> netdevice queuing levels,
    this controls the TCP --> pkt_sched queueing levels.

    From Eric Dumazet.

11) Reduce the number of get_page/put_page ops done on SKB fragments,
    from Alexander Duyck.

12) Implement protection against blind resets in TCP (RFC 5961), from
    Eric Dumazet.

13) Support the client side of TCP Fast Open, basically the ability to
    send data in the SYN exchange, from Yuchung Cheng.

    Basically, the sender queues up data with a sendmsg() call using
    MSG_FASTOPEN, then they do the connect() which emits the queued up
    fastopen data.

14) Avoid all the problems we get into in TCP when timers or PMTU events
    hit a locked socket.  The TCP Small Queues changes added a
    tcp_release_cb() that allows us to queue work up to the
    release_sock() caller, and that's what we use here too.  From Eric
    Dumazet.

15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits)
  genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP
  r8169: revert "add byte queue limit support".
  ipv4: Change rt->rt_iif encoding.
  net: Make skb->skb_iif always track skb->dev
  ipv4: Prepare for change of rt->rt_iif encoding.
  ipv4: Remove all RTCF_DIRECTSRC handliing.
  ipv4: Really ignore ICMP address requests/replies.
  decnet: Don't set RTCF_DIRECTSRC.
  net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse.
  ipv4: Remove redundant assignment
  rds: set correct msg_namelen
  openvswitch: potential NULL deref in sample()
  tcp: dont drop MTU reduction indications
  bnx2x: Add new 57840 device IDs
  tcp: avoid oops in tcp_metrics and reset tcpm_stamp
  niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value
  niu: Fix to check for dma mapping errors.
  net: Fix references to out-of-scope variables in put_cmsg_compat()
  net: ethernet: davinci_emac: add pm_runtime support
  net: ethernet: davinci_emac: Remove unnecessary #include
  ...

1 files changed, 0 insertions, 348 deletions

diff --git a/drivers/misc/iwmc3200top/log.c b/drivers/misc/iwmc3200top/log.c
deleted file mode 100644
index a36a55a49cac..000000000000
--- a/drivers/misc/iwmc3200top/log.c
+++ /dev/null
@@ -1,348 +0,0 @@
-/*
- * iwmc3200top - Intel Wireless MultiCom 3200 Top Driver
- * drivers/misc/iwmc3200top/log.c
- *
- * Copyright (C) 2009 Intel Corporation. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License version
- * 2 as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA.
- *
- *
- * Author Name: Maxim Grabarnik <maxim.grabarnink@intel.com>
- *  -
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/mmc/sdio_func.h>
-#include <linux/slab.h>
-#include <linux/ctype.h>
-#include "fw-msg.h"
-#include "iwmc3200top.h"
-#include "log.h"
-
-/* Maximal hexadecimal string size of the FW memdump message */
-#define LOG_MSG_SIZE_MAX		12400
-
-/* iwmct_logdefs is a global used by log macros */
-u8 iwmct_logdefs[LOG_SRC_MAX];
-static u8 iwmct_fw_logdefs[FW_LOG_SRC_MAX];
-
-
-static int _log_set_log_filter(u8 *logdefs, int size, u8 src, u8 logmask)
-{
-	int i;
-
-	if (src < size)
-		logdefs[src] = logmask;
-	else if (src == LOG_SRC_ALL)
-		for (i = 0; i < size; i++)
-			logdefs[i] = logmask;
-	else
-		return -1;
-
-	return 0;
-}
-
-
-int iwmct_log_set_filter(u8 src, u8 logmask)
-{
-	return _log_set_log_filter(iwmct_logdefs, LOG_SRC_MAX, src, logmask);
-}
-
-
-int iwmct_log_set_fw_filter(u8 src, u8 logmask)
-{
-	return _log_set_log_filter(iwmct_fw_logdefs,
-				   FW_LOG_SRC_MAX, src, logmask);
-}
-
-
-static int log_msg_format_hex(char *str, int slen, u8 *ibuf,
-			      int ilen, char *pref)
-{
-	int pos = 0;
-	int i;
-	int len;
-
-	for (pos = 0, i = 0; pos < slen - 2 && pref[i] != '\0'; i++, pos++)
-		str[pos] = pref[i];
-
-	for (i = 0; pos < slen - 2 && i < ilen; pos += len, i++)
-		len = snprintf(&str[pos], slen - pos - 1, " %2.2X", ibuf[i]);
-
-	if (i < ilen)
-		return -1;
-
-	return 0;
-}
-
-/*	NOTE: This function is not thread safe.
-	Currently it's called only from sdio rx worker - no race there
-*/
-void iwmct_log_top_message(struct iwmct_priv *priv, u8 *buf, int len)
-{
-	struct top_msg *msg;
-	static char logbuf[LOG_MSG_SIZE_MAX];
-
-	msg = (struct top_msg *)buf;
-
-	if (len < sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr)) {
-		LOG_ERROR(priv, FW_MSG, "Log message from TOP "
-			  "is too short %d (expected %zd)\n",
-			  len, sizeof(msg->hdr) + sizeof(msg->u.log.log_hdr));
-		return;
-	}
-
-	if (!(iwmct_fw_logdefs[msg->u.log.log_hdr.logsource] &
-		BIT(msg->u.log.log_hdr.severity)) ||
-	    !(iwmct_logdefs[LOG_SRC_FW_MSG] & BIT(msg->u.log.log_hdr.severity)))
-		return;
-
-	switch (msg->hdr.category) {
-	case COMM_CATEGORY_TESTABILITY:
-		if (!(iwmct_logdefs[LOG_SRC_TST] &
-		      BIT(msg->u.log.log_hdr.severity)))
-			return;
-		if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
-				       le16_to_cpu(msg->hdr.length) +
-				       sizeof(msg->hdr), "<TST>"))
-			LOG_WARNING(priv, TST,
-				  "TOP TST message is too long, truncating...");
-		LOG_WARNING(priv, TST, "%s\n", logbuf);
-		break;
-	case COMM_CATEGORY_DEBUG:
-		if (msg->hdr.opcode == OP_DBG_ZSTR_MSG)
-			LOG_INFO(priv, FW_MSG, "%s %s", "<DBG>",
-				       ((u8 *)msg) + sizeof(msg->hdr)
-					+ sizeof(msg->u.log.log_hdr));
-		else {
-			if (log_msg_format_hex(logbuf, LOG_MSG_SIZE_MAX, buf,
-					le16_to_cpu(msg->hdr.length)
-						+ sizeof(msg->hdr),
-					"<DBG>"))
-				LOG_WARNING(priv, FW_MSG,
-					"TOP DBG message is too long,"
-					"truncating...");
-			LOG_WARNING(priv, FW_MSG, "%s\n", logbuf);
-		}
-		break;
-	default:
-		break;
-	}
-}
-
-static int _log_get_filter_str(u8 *logdefs, int logdefsz, char *buf, int size)
-{
-	int i, pos, len;
-	for (i = 0, pos = 0; (pos < size-1) && (i < logdefsz); i++) {
-		len = snprintf(&buf[pos], size - pos - 1, "0x%02X%02X,",
-				i, logdefs[i]);
-		pos += len;
-	}
-	buf[pos-1] = '\n';
-	buf[pos] = '\0';
-
-	if (i < logdefsz)
-		return -1;
-	return 0;
-}
-
-int log_get_filter_str(char *buf, int size)
-{
-	return _log_get_filter_str(iwmct_logdefs, LOG_SRC_MAX, buf, size);
-}
-
-int log_get_fw_filter_str(char *buf, int size)
-{
-	return _log_get_filter_str(iwmct_fw_logdefs, FW_LOG_SRC_MAX, buf, size);
-}
-
-#define HEXADECIMAL_RADIX	16
-#define LOG_SRC_FORMAT		7 /* log level is in format of "0xXXXX," */
-
-ssize_t show_iwmct_log_level(struct device *d,
-				struct device_attribute *attr, char *buf)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *str_buf;
-	int buf_size;
-	ssize_t ret;
-
-	buf_size = (LOG_SRC_FORMAT * LOG_SRC_MAX) + 1;
-	str_buf = kzalloc(buf_size, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %d bytes\n", buf_size);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	if (log_get_filter_str(str_buf, buf_size) < 0) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	ret = sprintf(buf, "%s", str_buf);
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t store_iwmct_log_level(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *token, *str_buf = NULL;
-	long val;
-	ssize_t ret = count;
-	u8 src, mask;
-
-	if (!count)
-		goto exit;
-
-	str_buf = kzalloc(count, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %zd bytes\n", count);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	memcpy(str_buf, buf, count);
-
-	while ((token = strsep(&str_buf, ",")) != NULL) {
-		while (isspace(*token))
-			++token;
-		if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
-			LOG_ERROR(priv, DEBUGFS,
-				  "failed to convert string to long %s\n",
-				  token);
-			ret = -EINVAL;
-			goto exit;
-		}
-
-		mask  = val & 0xFF;
-		src = (val & 0XFF00) >> 8;
-		iwmct_log_set_filter(src, mask);
-	}
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t show_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr, char *buf)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	char *str_buf;
-	int buf_size;
-	ssize_t ret;
-
-	buf_size = (LOG_SRC_FORMAT * FW_LOG_SRC_MAX) + 2;
-
-	str_buf = kzalloc(buf_size, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %d bytes\n", buf_size);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	if (log_get_fw_filter_str(str_buf, buf_size) < 0) {
-		ret = -EINVAL;
-		goto exit;
-	}
-
-	ret = sprintf(buf, "%s", str_buf);
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-
-ssize_t store_iwmct_log_level_fw(struct device *d,
-			struct device_attribute *attr,
-			const char *buf, size_t count)
-{
-	struct iwmct_priv *priv = dev_get_drvdata(d);
-	struct top_msg cmd;
-	char *token, *str_buf = NULL;
-	ssize_t ret = count;
-	u16 cmdlen = 0;
-	int i;
-	long val;
-	u8 src, mask;
-
-	if (!count)
-		goto exit;
-
-	str_buf = kzalloc(count, GFP_KERNEL);
-	if (!str_buf) {
-		LOG_ERROR(priv, DEBUGFS,
-			"failed to allocate %zd bytes\n", count);
-		ret = -ENOMEM;
-		goto exit;
-	}
-
-	memcpy(str_buf, buf, count);
-
-	cmd.hdr.type = COMM_TYPE_H2D;
-	cmd.hdr.category = COMM_CATEGORY_DEBUG;
-	cmd.hdr.opcode = CMD_DBG_LOG_LEVEL;
-
-	for (i = 0; ((token = strsep(&str_buf, ",")) != NULL) &&
-		     (i < FW_LOG_SRC_MAX); i++) {
-
-		while (isspace(*token))
-			++token;
-
-		if (strict_strtol(token, HEXADECIMAL_RADIX, &val)) {
-			LOG_ERROR(priv, DEBUGFS,
-				  "failed to convert string to long %s\n",
-				  token);
-			ret = -EINVAL;
-			goto exit;
-		}
-
-		mask  = val & 0xFF; /* LSB */
-		src = (val & 0XFF00) >> 8; /* 2nd least significant byte. */
-		iwmct_log_set_fw_filter(src, mask);
-
-		cmd.u.logdefs[i].logsource = src;
-		cmd.u.logdefs[i].sevmask = mask;
-	}
-
-	cmd.hdr.length = cpu_to_le16(i * sizeof(cmd.u.logdefs[0]));
-	cmdlen = (i * sizeof(cmd.u.logdefs[0]) + sizeof(cmd.hdr));
-
-	ret = iwmct_send_hcmd(priv, (u8 *)&cmd, cmdlen);
-	if (ret) {
-		LOG_ERROR(priv, DEBUGFS,
-			  "Failed to send %d bytes of fwcmd, ret=%zd\n",
-			  cmdlen, ret);
-		goto exit;
-	} else
-		LOG_INFO(priv, DEBUGFS, "fwcmd sent (%d bytes)\n", cmdlen);
-
-	ret = count;
-
-exit:
-	kfree(str_buf);
-	return ret;
-}
-